diff --git a/crates/cuddle-clusters/src/components.rs b/crates/cuddle-clusters/src/components.rs
index 8ffc255..ff9754c 100644
--- a/crates/cuddle-clusters/src/components.rs
+++ b/crates/cuddle-clusters/src/components.rs
@@ -27,11 +27,11 @@ pub trait Component {
 
 #[derive(Clone)]
 pub struct ConcreteComponent {
-    inner: Arc<dyn Component + Send + 'static>,
+    inner: Arc<dyn Component + Sync + Send + 'static>,
 }
 
 impl std::ops::Deref for ConcreteComponent {
-    type Target = Arc<dyn Component + Send + 'static>;
+    type Target = Arc<dyn Component + Sync + Send + 'static>;
 
     fn deref(&self) -> &Self::Target {
         &self.inner
@@ -39,7 +39,7 @@ impl std::ops::Deref for ConcreteComponent {
 }
 
 impl ConcreteComponent {
-    pub fn new<T: Component + Send + 'static>(t: T) -> Self {
+    pub fn new<T: Component + Sync + Send + 'static>(t: T) -> Self {
         Self { inner: Arc::new(t) }
     }
 }
@@ -54,7 +54,7 @@ impl IntoComponent for ConcreteComponent {
     }
 }
 
-impl<T: Component + Send + 'static> IntoComponent for T {
+impl<T: Component + Sync + Send + 'static> IntoComponent for T {
     fn into_component(self) -> ConcreteComponent {
         ConcreteComponent::new(self)
     }